Folding delivery mechanism



H. A. W. WOOD AND C. NORDFORS.

FOLDING DELIVERY MECHANISM.

APPLICATION FILED FEB, 2. I915. RENEWED OCT. 14.1921.

Patented June 13, 1922.

3 SHEETSSHEET I.

1 IIIIIIII H. A. W. WOOD AND C; NORDFORS.

FOLDING DELIVERY MECHANISM.

' APPLICATION FILED FEB, 2, 1.915. RENEWED on. 14. 1921.

1A1 9,188 Patented June 13, 1922. I

3 SHEETS-SHEET 2.

9 was SM Q ' H. A. W. WOOD AND C. NORDFORS FOLDING DELIVERY MECHANISM APPLICATION FILED FEB, 2, I915. RENEWED ocT. 14.1921.

3 SHEETSSHEET 3.

airs-o era-res PATENT 'QFFTQE'.

nanny a. WISE woon, on NEW YORK, N. Y.', im CONRAD nonnrons, or JERSEY errY nnron'rs, NEW JERSEY, assrcnons '10 WOOD NEWSPAPER MACHINERY oonrone'rion, or NEW YORK, N. $2., A CORPORATION or vmernm.

FOLDING DELIVERY MECHANISM.

Specification of Letters Patent.

Patented June 13,1922.

Application filed February 2, 1915, Serial No. 5,641. Renewed October 14, 1921. Serial No. 507,751.

To all whom it may concern:

Be it known that we, HENRY A. Wish Wool) and CONRAD NoRoFoRs, citizens of the United States, said Wood residing at New York, in the county of New York and State of New York, said Nordfors residing at Jere sey City Heights, county of Hudson, and State of New Jersey, have invented a new and useful Folding Delivery Mechanism, of'

which the following is a specification.

This invention relates to that class of folding mechanism in which the fold of the sheet is tucked into a set ofoscillatable gripping jaws and these jaws are caused to turn for the purpose of drawing the fold of the sheet inwardly, thoroughly creasingit, and firmly holding it and then ejecting the sheet and delivering it.

-The principal objects of this invention are to provide a folding delivery mechanism of this type capable of. operating at a very high speed without any unnecessary strain on the web-and without excessive vibration and noise; to provide for folding a sheet in thls way so as to prevent bending the body of the folded sheet away from the fold line on which it is held by the jaws in such a way as to tend to fold back the sheet under the body; and to provide an improved form of carrier and other features of construction as will appear hereinafter.

Reference is tobe had to the accompanyin drawings, in which-- ig. 1 is a side elevation of a part of a TWGb press frame showing a preferred embodiment of this invention applied thereto; Fig. 2 is a detail side view of afeature thereof with parts shown in section;

Fig. 3 is a sectional View of the gripping jaws on the line 33 of Fig- 1;

Fi 1 is an end elevation ofthe frame showing the same construction;

Figs. 5, 6 and 7 are side views showing the positions of the grip-ping jaws and other parts at three different stages in the rotation of the carrier, details of construction being omitted, and

Fig. 8 is a diagrammatic view indicating the relative positlons of the jaws or the arm which operates them at different. parts of the rotation of the carrier.

- The folding cylinder 10 is shown as provided as usual with paper pin points and cutting rubbers or checks and with two stationary tucker blades 11 fastened thereto.

An ordinary cutting cylinder 12 is shown located vertically below the folding cylinder 10 and having a pair of discs 13 which constitute the supportin part of it. These discs are carried by a sha t 30 which is journalled on the frame A of the folder.

discs carry cappedbearings 15 in-which are These two journalled a pair of opposite rollers 14 each 'one constituting a set of ,gripping jaws.

These rollers are provided with gears or pinions 16 on their rear ends adapted to mesh with similar gears or inions on another pair of rollers 17 constituting exactly similar jaws. These rollers 17, however, are provided withstuds 18 which are support-- ed in brackets 19. By means of springs 20 carried by said brackets on the frame and held by nuts 21 the necessary tension is provided for pressing the rollers 17 against the rollers 14. The front ends of the rollers 14 are provided with lever-cranks 22 which are connected with two eccentric straps 23. An eccentric 24 is provided on the shaft 30 at the front and the hub of this eccentric which surrounds the shaft passes through the frame A. One eccentric, operates two straps 23 and the single hub which extends through the side of the frame A can be turned on its ownv axis for adjusting this eccentric while the machine is running if desired in order to take case of paper of different weights of thicknesses. In order to provide a convenient adjustment for this purpose the hub of the eccentric is provided with a. worm-wheel 26 on the outside of the frame which meshes with a worm 27 journalled in a bracket 28. This worm is mounted on a square ended shaft 29 so that the operator can perform the adjustment while the machine is running by turning this worm in the desired direction.

The rear end of the shaft 30 carries two gears 32 and.33. The gear 32 meshes with a gear 34: fastened to the shaft of a bending roller. 35. This roller is'journalled in brackets 36 on the side frames of the folder and operates at web s eed. The gear 33 is a part of the ordinary d iiving train for the folding mechanim.

The carrier itself is made up,'in addition to the discs 13, of a set of circular supports -37 securely fastened to the shaft 30 and At the bottom, delivery belts are shown for receiving the folded sheet from the carrier. A shaft 39 at this point is provided with a set of strippers 40 which enter grooves 41 in the rollers 14 and 17 which grooves separate these rollers into the plurality of jaws mentioned. These strippers are shown as provided with adjustable stops 42 clamped to the strippers by means of clamping screws 43 operating in elongated slots with which the strippers are provided. The delivery belts, 88 can be driven in any desired way preferably from the shaft 30 but this drive is'not illustrated.

The operation of the device will be most obvious from a consideration of the figures on the last sheet of drawings. The eccentric 24 is so positioned that from the position shown in Fig. 5 to that shown in Fig. 6 the tendency of the folding rollers or gripping jaws 14 and 17 is to pull toward the center of the carrier, a sheet which has been tucked between them by the blade 11. At this time one leaf of the sheet may rest on the carrier while the other passes over the bending roller 35 which, as has been stated, is driven at web speed. From the position shown in Fig. 6 to that shown in Fig. 7, the motion of the gripping jaws or rollers is reversed, and the sheet is gradually ejected from the grip of the rollers so that it can be stripped by the strippers and dropped on the delivery belts: The operation of ejecting consists simply in moving the fold of the sheet outwardly in a radial direction until the jaws loose their grip on it. All the way around'from the pointshown in Fig. 7- to that shown in Fig. 5 the rollers retain a substantially open position ready to receive a sheet, but this is the idle part of the rotation.

In this way it will be seen that the sheet is tucked into the jaws inthe position shown in Fig. 5, and then as the carrier rotates through a quarter it is constantly and gradually pulled in toward the center of the carrier, the sheet thus having a speed slightly greater than web speed. At this point it will be seen that the shape of the folding rollers is such as to prevent any sharp bend in the sheet as it is carried from the position shown in Fig. 5 to that shown in Fig. 6. This is accomplished by making these rollers or aws cylindrical and concentric with their shafts or axes of oscillation on their inner and gripping portions and by flattening them out slightly in the outside. They are still left curved however on the outs de a a gradual curvature provided at the point where the two curves meet. This also prevents these rollers from projecting out materially beyond the circumference of the carrier and interfering with the folding cylinder as they pass it, but as they do project slightly this cylinder is provided with a concave surface to permit them to pass.

Fig. 8 indicates the positions of the arms '22 at different points in the. circumference of the carrier.

Although we have illustrated and described only one form of the invention, we are aware of the fact that it is capable of being carried out in many other ways without departing from the scope thereof as expressed in the claims. Therefore we do not wish to be limited to the details of construction described herein, but what we do claim is 1. In a folding delivery mechanism, the combination with a folding cylinder having a tucker blade, of a rotary carrier, and a pair of rollers on the carrier for receiving sheets from the folding cylinder and gripping them at the fold, said rollers being turnedon parallel axes, and each having a gripping surface which constitutes part of a modified cylinder having the center of oscillation as its central axis and flattened .on the outer side.

2. In a folding delivery mechanism, the combination with a folding cylinder having a tucker blade, of a rotary carrier having means for receiving sheets from the folding cylinder, gripping them at the fold and continuously drawing the fold inward toward the center of the carrier as the carrier rotates through a material part of a revolution and for then commencing to eject the fold from the gripping means, said receiving and gripping means comprising a pair of members mounted on the carrier and adapted to oscillate on parallel axes, each having a gripping surface which constitutes part of a cylinder and flattened on the outer side, a set of stripping fingers for removing the folded sheets from the carrier, said gripping mem-,

bers having slots for receiving said stripping fingers dividing the gripping members into a series of jaws.

3. The combination of a rotary carrier for a folding mechanism, a shaft on which said.

carrier is mounted, a pair of sets of oscillatable aws mounted on said carrier, an eccentric loose on said shaft, an eccentric strap carried by the carrier, and means operated by said eccentric and strap for oscillating said jaws inwardly at their points of contact during a material part of a revolution of the carrier after a sheet has been gripped by the jaws, and for thereafter oscillating the jaws in the opposite direction to eject the folded sheet.

4. A rotary carrier for a folding mechanism having means forreceiving sheets from a folding cylinder, gripping them at the fold and drawing the fold inward toward the center of the carrier as the carrier rotates through a material part of a revolution, and

means whereby the amount of motion to- -ward the center of the carrier can. be adjusted while the carrier is rotating.

5. The COIIlblIlfltlOIl of a rotary carrler, a

pair of sets of oscillatable jaws mounted on' said carrier, a non-rotatable but circumferentially adjustable eccentric, an eccentric strap carried by the carrier, means operated by said eccentricand strap for oscillating said jaws inwardly at their points-of contact durin gripped by the jaws, and for thereafter oscillating the jaws in the opposite direction to eject.

the folded sheet, and means for turning said eccentric while the .machine is running-for the. purpose of adjusting thejaws relative to each other.

thereafter oscil 6-. The combination of a rotary carrier, a pair of sets of-oscillatable jaws mounted on said carrier, an eccentricon the shaft of the carrier, an eccentric strap carried by the carrier, means operated b said eccentric and strap for oscillating sai jaws inwardly at their points of contact", during a material part of a revolution of the carrier after a sheet has been gripped by the jaws, and for site direction toeject the folded sheet,-tlie jaws of each set being fixed with respect to each other, and yielding means-for moving thejawsof oneset toward the other set ofjaws for the purpose of providingtension.

. 7. The combination of a rotary carrier, a

pair of parallel'shafts, a set of oscillatable jawsmounted on each shaft, means for oscillating said shafts, the jaws of each set being fixed with respect to each-other, and-yieldingfmeans for moving one of .the' shafts toward the otherand bodily moving one setof jaws for. providing tension. 8.In a folding delivery mechanism, the

combination of a foldingcylinder, a rotary carrier having means for receiving folded sheets from the cylinder. and grippinggthem atthe fold, a single bending rollerat subst'antially equal distances from the folding cylinder and {carrier for 'SUPPOItlIlg one loose end of the folded sheet as it moves away from the folding cylinder, and means a for positively driving the bending roller.

9. In a folding delivery mechanism, the combination of a folding cylinder for reeivin'g' a web, a rotary carrier directly below it having means for receiving folded sheets therefrom, and gripping them at the 'fold,"a bending'roller at a".point substan tially in horizontal alignment with the oint ofcontact of the folding cylinder an cara material part of a revolution of the carrier after a sheet has been ating the jaws'in the opporier for supporting the loose end of the the folding cylinder, and means for driving folded sheet as it is being moved away from the bending roller at web speed, said carrier being at the bottom.

10. The combination of a rotary carrier, a shaft therefor, a pair of discs near the ends of said shaft, gripping members sup.- ported by said discs for receiving the fold strippers. arranged for stripping the sheets from the carrier, movable stops adjustably mounted on the strippers, and delivery mech anism for receiving the sheets from the carrier.

11. .The combination'ofa rotary carrier,

a shaft therefor, a pair of discs near the ends of said shaft, gripping members supported by said discs and extending from one of'a sheet from a tucker blade or the like,

to-the other for receiving the fold of a sheet from a tucker blade or the like, a series of circular supports mounted on said shaft between said. discs and spaced apart for supporting the Sheets as they pass around with the carrier, strippers arranged for stripping the sheets from the carrier, movable stops adjustably mounted on the strippers, and delivery mechanism for receiving .the sheets from the-carrier. r

12 In a folding delivery mechanism, the

combination with a folding, cylinder having a tucker blade, of a rotary carrierhaving means for receiving sheets from. the folding cylinder, ipping them at the fold and drawing the old inward toward the center of the'carrier as the. carrier rotates througha material part of a revolution, a bending roller at a point adjacent to the folding cylinder and carrier for supporting. the loose. end of the folded'sheet, as it is being moved away from the folding cylinder, and means for positively driving thebending roller at web speed. 13.111 a folding dellvery mechanism, the

combination of a folding cylinder, a-rotary carrier having means for receiving folded sheets and gripping them at the fold, a

bending roller at a point adjacent to the folding cylinder and carrier for supporting the loose. end of the folded sheet as itis being moved away from the folding cylat a point materially beyond said roller, and

means for positively driving the bending inder, said carrier being-arranged to deliver I 

